Engine

This class chains up the entire data process. PredictionIO uses this information to create workflows and deployments. In Scala, you should implement an object that extends the IEngineFactory trait similar to the following example.

object ItemRankEngine extends IEngineFactory {
def apply() = {
  new Engine(
    classOf[ItemRankDataSource],
    classOf[ItemRankPreparator],
    Map(
      "knn" -> classOf[KNNAlgorithm],
      "rand" -> classOf[RandomAlgorithm],
      "mahoutItemBased" -> classOf[MahoutItemBasedAlgorithm]),
    classOf[ItemRankServing])
}
}

TD: Training data class.
EI: Evaluation info class.
PD: Prepared data class.
Q: Input query class.
P: Output prediction class.
A: Actual value class.

See also: IEngineFactory

Linear Supertypes

Serializable, Serializable, AnyRef, Any

Known Subclasses

JavaEngine, JavaSimpleEngine, PJavaEngine, SimpleEngine

Instance Constructors

new Engine(dataSourceClass: Class[_ <: BaseDataSource[TD, EI, Q, A]], preparatorClass: Class[_ <: BasePreparator[TD, PD]], algorithmClassMap: Map[String, Class[_ <: BaseAlgorithm[PD, _, Q, P]]], servingClass: Class[_ <: BaseServing[Q, P]])

dataSourceClass
Data source class.
preparatorClass
Preparator class.
algorithmClassMap
Map of algorithm names to classes.
servingClass
Serving class.

Value Members

final def !=(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def !=(arg0: Any): Boolean

Definition Classes
Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def ==(arg0: Any): Boolean

Definition Classes
Any
val algorithmClassMap: Map[String, Class[_ <: BaseAlgorithm[PD, _, Q, P]]]

Map of algorithm names to classes.
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def copy(dataSourceClass: Class[_ <: BaseDataSource[TD, EI, Q, A]] = dataSourceClass, preparatorClass: Class[_ <: BasePreparator[TD, PD]] = preparatorClass, algorithmClassMap: Map[String, Class[_ <: BaseAlgorithm[PD, _, Q, P]]] = algorithmClassMap, servingClass: Class[_ <: BaseServing[Q, P]] = servingClass): Engine[TD, EI, PD, Q, P, A]

Returns a new Engine instnace.
Returns a new Engine instnace. Mimmic case class's copy method behavior.
val dataSourceClass: Class[_ <: BaseDataSource[TD, EI, Q, A]]

Data source class.
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
val preparatorClass: Class[_ <: BasePreparator[TD, PD]]

Preparator class.
val servingClass: Class[_ <: BaseServing[Q, P]]

Serving class.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

class Engine[TD, EI, PD, Q, P, A] extends Serializable

Instance Constructors

new Engine(dataSourceClass: Class[_ <: BaseDataSource[TD, EI, Q, A]], preparatorClass: Class[_ <: BasePreparator[TD, PD]], algorithmClassMap: Map[String, Class[_ <: BaseAlgorithm[PD, _, Q, P]]], servingClass: Class[_ <: BaseServing[Q, P]])

Value Members

final def !=(arg0: AnyRef): Boolean

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: AnyRef): Boolean

final def ==(arg0: Any): Boolean

val algorithmClassMap: Map[String, Class[_ <: BaseAlgorithm[PD, _, Q, P]]]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

val dataSourceClass: Class[_ <: BaseDataSource[TD, EI, Q, A]]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

val preparatorClass: Class[_ <: BasePreparator[TD, PD]]

val servingClass: Class[_ <: BaseServing[Q, P]]

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped